clear all
cd "_________"
set more off


//confidential dataset not in this file

use "pm10mle.dta", clear
// Table 1 Summary Statistics of Daily PM10 
tabstat pmconc, by(year) stats(N mean sd min max)

by id: egen firstyear=min(year)
tabstat pmconc if firstyear==2001, by(year) stats(N mean sd min max)
